NIL HEARDRECEPTION LOG

NSS US Navy Annapolis, continuous FSK

tier A · mixed

12013.5 kHz USB · 2026-10-06 11:21:29Z · 04:49 · received at Tellico Plains, TN USA

Spectrogram of NSS US Navy Annapolis, continuous FSK, 12013.5 kHz USB, 2026-10-06 11:21:29Z, 04:49: mixed 100%
spectrogram 0–6.0 kHz · analysis blocks: mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 4.8 MB ⤓ Opus 1201 kB { }
What was heard
mixed 100%. Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Tellico Plains, TN USA (EM75ul) · end-fed 173' wire @ 50' · reported SNR 29 dB — thanks to the operator. Receivers
Provenance
sha256 a6b57409854c99959d71a4999c83623efd54b6e114281d82ff7b7d838157987e
source 04:49 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-06T1121Z-12013.5-fsk-nss-12015
Heard in the record
— linked once the record exists.
Licence
CC BY 4.0 — credit NIL HEARD / Reception Log. The recording is ours; the transmission is somebody else's. Descriptions describe sound, never content — why.
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